22 Dec 2019

December 22, 2019

    YESTERDAY:

    Saturday Dec 21, 2019. 14:00 Hrs. -5.6 with a 10-20 KPH wind out of the South.

    Early Saturday morning, nice groomers.

    Some breaks during the morning.

    Was a great morning above the valley cloud.

    Challenging in the cloud.



  Saturday afternoon, The Atmospheric River  was still just too our South.

    Big Picture Saturday.


Weather Observations for December 22, 2019 taken at 06:00 Hours.

2240 meters      -8, Winds were 15-25 KPH SE--Horstman Hut
2180 meters      -7, Winds were 30-35 KPH SE--Whistler Peak
1860 meters      -7, Winds were   5-10 KPH SE --Rendevous 
1835 meters      -6, Winds were 10-15 KPH SE--Round House
1650 meters      -6, trace in 12 Hrs, trace in 24 Hrs, Base 103 cm --Pig Alley
1560 meters .    -5, trace in 12 Hrs, trace in 24 Hrs, Base   55 cm--Catskinner
  660 meters       0, Valley Temp, Max temp Yesterday was +2.1, 6.1 mm of precip yesterday.


    As of 07:00 hrs this am we have broken cloud and unlimited visibility.



FORECAST:

A weak ridge is building off the coast and a weak upper trough is just to our South bringing unsettled weather for today into Monday. The flow aloft is Southwesterly and the freezing level is just above surface and should fall below surface later today. A weak front will slide down the coast on Tuesday with the chance of some intermittent snow flurries and overcast skies. Next precipitation event will hopefully come on Thursday into Saturday.


    Goes Ir image from this am.


    Weak ridge for today with unsettled weather.





    Fronts along the coast.

     Weak ridging for Monday with a mix of sun and cloud.





    Low begins to migrate down the coast for Tuesday. Mostly cloudy with a chance of some flurries.



    AVALANCHE ACTIVITY:

    Early morning avalanche control on Whistler Mountain.

    Heli Bombing Saturday afternoon. Sz 2.5-3.5 Remote/sympathetics.  Reason Boundary is closed.

    Stuie's upper right Xh Sz 3 released a slope 500 meters away Sz 2.

    Heli bombing on Whistler Saturday afternoon. Sz 2.5's out of Surprise Low.


    Snowballing on South Facing slopes when the sun came out.



    INFORMATION & OBSERVATIONS:

    Lots of cloud layers on Saturday.

    Skinning up lower Disease Ridge.

    Some of the glade skiing is a bit sporty.

    Avalanche closure, top of Crystal Chair.

    Working on Glacier Express.

    Another awesome day.

    There was some nice dry snow to be had yesterday.

    Avalanche Awareness tours start today, 12:30  top of the Blackcomb Gondola.


From Avalanche Canada MIN Reports:

Callaghan Observations: Dec 20, 2019

Disease Ridge: Dec 21, 2019


ARTICLES:

High Avalanche danger: Glacier National Park

Snow, strong winds fuel Saturday Avalanche Threat: Alberta

How to build a Snow Shelter: Gear Patrol

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